.block-line hr {
    background: #E0E0E0;
    margin: 0 -15px;
    border: 0;
    height: 1px;
}

.editing #content-area .block.block-line  {
    clear: both;
}

hr.four-textblock-submenu-hr-top,
hr.four-textblock-submenu-hr-bottom {
    display: none;
}